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Find Air conditioning pros in Fairfax Station

Avatar for Relax HVAC, Inc.
Relax HVAC, Inc.
5.0(
32
)

Serving Fairfax Station, VA and surrounding areas

Approved

In business since 2008

Free estimates

Emergency services offered

"I have used Relax Air services twice in the past. On November 19th my water heater stopped producing hot water, I've called Nasser to come over to assess what needed to be done. On Monday Nov. 21st he replaced my old water heater (21 years old) Nasser is honest and very reliable. He is very reasonable with his pricing (I have compared Nasser's pricing to my next door neighbors water heater replacement cost). I would highly recommend Relax Air. A huge THANK YOU to Nasser...Relax Air is the ONLY company for my Heating And Air Conditioning needs!"
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+12

Response time1 day
10 neighbors recently requested a quote
Recommended by100%of homeowners
Avatar for Conde Tech Services, LLC
Conde Tech Services, LLC
5.0(
206
)

Serving Fairfax Station, VA and surrounding areas

Approved

In business since 2017

Free estimates

Emergency services offered

"Our air conditioning was not working and our house was extremely hot. I called on a Sunday afternoon and Matt came later in the afternoon and fixed our problem. Our air-conditioning is working again and we will finally be able to have a good night sleep. I was thrilled that Matt came out on a Sunday evening and fixed our problem. He also took the time to show me how to change the filters in our unit and had me practice to make sure that I could do it by myself. I would highly recommend Conde Tech Services."
Gas Fireplace Service
Gas Logs Maintenance
Heat Repair
AC Maintenance
Cleaned outdoor unit

+2

Response time10 hrs
Response rate92%
Recommended by99%of homeowners
Avatar for BlueStar Air Mechanical Inc.
BlueStar Air Mechanical Inc.
4.9(
32
)

Serving Fairfax Station, VA and surrounding areas

Approved

In business since 2012

Free estimates

Emergency services offered

"I contacted Bluestar Air Mechanical for a second opinion after an appointment with Air One. I have a Carrier HVAC system, and the Air One technician recommended a complete system replacement, claiming the blower was bad, the furnace control board needed replacing, and that there were other issues. Since replacing the HVAC is a big investment, I wanted to get a second opinion. It was only after comparing the service from Bluestar that I realized Air One may have been pushing for a new system sale or lacked the expertise to properly diagnose and repair the actual problems. Isaac, the technician from Bluestar, spent about an hour thoroughly diagnosing and fixing the issues. He found burnt wiring in the furnace and discovered that the wrong capacitor had been incorrectly installed in the AC. Isaac replaced the burnt wiring in the furnace and the capacitor in the AC. After these repairs, my Carrier system was back up and running—without the need for a costly replacement. Bluestar, and Isaac in particular, demonstrated professionalism, expertise, and honesty. They focused on resolving the actual issues instead of pushing for an unnecessary system replacement. I highly recommend Bluestar for their reliable service and Isaac’s thorough and knowledgeable work."
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+13

Response time6 hrs
2 neighbors recently requested a quote
Recommended by79%of homeowners
Avatar for McCrea Heating & Air Conditioning Services of VA
McCrea Heating & Air Conditioning Services of VA
4.6(
373
)

Serving Fairfax Station, VA and surrounding areas

Approved

In business since 1936

Free estimates

Emergency services offered

"The technician (Shammion) arrived on time and spent time listening to my concerns and answered my questions before proceeding with the work. Shammion has serviced my furnace and a/c unit previously, and on each occasion he has spent time informing me how various parts of my HVAC should work and what I need to do to get the most from the systems. On this occasion, Shammion instructed me on how to use my new thermostat and how best to keep my condenser coil clean in the future. The work was done expertly and in a professional manner, and I highly recommend Shammion and McCrea Heating and Air Conditioning."
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Trane Unit
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19 neighbors recently requested a quote
Recommended by91%of homeowners
Avatar for Magna Tech Temp Air, LLC
Magna Tech Temp Air, LLC
4.8(
166
)

Serving Fairfax Station, VA and surrounding areas

Approved

Super Service Award Winner

In business since 2016

Free estimates

Emergency services offered

"Quickly diagnosed the central air conditioning system, and gave an estimate on the cost of recharging the refrigerant in the compressor. The system is a 14 year old Carrier unit. Albert also included some sealant that may plug up the slow leak of refrigerant that occurs every 2 years or so. Albert also, showed me how to adjust the damper to control the flow of air to the second and third floors of the house. The other company that arrived wanted to charge me $5,000 to repair the system or close to $7,000 to replace the AC system with new. I intend to call upon Magna Tech Temp Air, Inc when I'm ready to purchase a new HVAC system. Thanks again for taking the time to listen to my concerns. Well done!!!"
New !6 Seer 3 Ton Air condition
B-Vent
New 80% Gas Furnace Instal
Ashburn Upgrade
Ashburn upgrade

+4

Response time3 hrs
9 neighbors recently requested a quote
Recommended by94%of homeowners
Avatar for TC HVAC Services, LLC
TC HVAC Services, LLC
5.0(
20
)

Serving Fairfax Station, VA and surrounding areas

Approved

In business since 2013

Free estimates

Emergency services offered

"Super fast, reliable and efficient!!! T was at my house in less than 10 min after we talked over the phone. My AC broke and house was super hot. T even brought his portable AC and temporary installed it I m my bedroom until he replaced the unit. Highly recommend. Knowledgeable and professional"
fully installation entire house duct with system
old outdoor
old outdoor
main trunk line the same house
old indoor

+99

Response time3 hrs
Recommended by100%of homeowners
Avatar for ARS of Virginia
ARS of Virginia
4.4(
272
)

Serving Fairfax Station, VA and surrounding areas

Approved (Corporate)

In business since 1950

Free estimates

Emergency services offered

"The team was very helpful with identifying the issue with our heating system and providing guidance on how to proceed. We replaced the entire system (which was 10 years old). Very happy with the end result. The air is so much cleaner and my son's allergies have significantly reduced."
Install of a new A/C system.
278 neighbors recently requested a quote
Recommended by80%of homeowners
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FAQs for air conditioning projects in Fairfax Station, VA

Most professional HVAC technicians require two to three hours to complete an expansion valve replacement. The timeframe depends on your unit's accessibility and whether additional repairs are needed. The process involves recovering refrigerant, removing the old valve, installing the new component, and recharging the system. Scheduling during less busy seasons may result in more convenient appointment times.

Operating your air conditioner with a malfunctioning expansion valve isn't advisable. Continuing to run the system could potentially damage other components, particularly your compressor, which is significantly more expensive to replace. If you notice performance issues like inconsistent cooling or unusual noises, it's best to have your system inspected before continuing regular use.

Expansion valves don't have a standard replacement schedule, as their longevity depends on system usage, maintenance frequency, and environmental factors. Regular professional maintenance helps identify potential valve issues before they cause system failure. Having your HVAC system serviced annually allows technicians to monitor component condition and recommend preventative replacements when necessary.

Refrigerant leaks require prompt professional attention. If your expansion valve is leaking, you'll likely notice reduced cooling performance and possibly hear hissing sounds near the unit. Addressing leaks quickly prevents further system inefficiency and avoids the environmental impact of released refrigerant. Your HVAC technician will need to repair the leak and recharge the system with the proper refrigerant type and amount.

Because many AC issues present similar symptoms, professional diagnosis is recommended. Problems like inadequate cooling, inconsistent temperatures, or strange noises could indicate expansion valve issues, but might also stem from refrigerant leaks, electrical problems, or airflow restrictions. A qualified HVAC technician has the tools and expertise to accurately identify the root cause and recommend appropriate repairs.

The Fairfax Station, VA homeowners’ guide to air conditioning services

From average costs to expert advice, get all the answers you need to get your job done.